Huh? "what amounts to?" You want people to believe a federal prosecutor with Smith's experience and knowledge is unaware of the facts?
"
Federal courts cannot issue advisory opinions because of the Constitution's case-or-controversy requirement. State courts are not subject to the Constitution's case or controversy requirement and are therefore free to issue advisory opinions so long as their state constitutions allow."
advisory opinion
Facts Matter
and you link is credible?
source: NYT (source Trump himself uses)
Special Counsel Asks Supreme Court to Decide Whether Trump Is Immune From Prosecution
The request was unusual in two ways: Jack Smith asked the justices to rule before an appeals court acted, and he urged them to move with exceptional speed.
“This case presents a fundamental question at the heart of our democracy: whether a former president is absolutely immune from federal prosecution for crimes committed while in office or is constitutionally protected from federal prosecution when he has been impeached but not convicted before the criminal proceedings begin,” Mr. Smith wrote.
He added that speed was of the essence, as Mr. Trump’s appeal of a trial judge’s ruling rejecting his claim of immunity suspends the trial of the charges against him. The trial is scheduled to begin on March 4 in Federal District Court in Washington.
Now:
An advisory opinion is a non-binding interpretation of the law by a court,1. Advisory Opinion, Black's Law Dictionary (11th ed. 2019). essentially the court providing advice on an abstract or hypothetical legal question.